US presidential election results

The old tenant in the White House stays for another four years after Tuesday’s presidential election in the United States. By the time of writing, Obama has secured 303 of the electoral votes, while his opponent Romney could only secure 206. The 29 votes from Florida were still undecided, but showed a favour towards Obama. The number of votes in the electoral college which elects the president reflects very much the population distribution in the country, and according to the US voting system one state gives all its votes to the winning candidate in that state. Therefore the presidential election is often displayed on a map based on state-level results. What the conventional maps fail in though is a correct proportional view of the votes, giving the less densely populated space in the mid-west a lot more space in the map display compared to the densely populated east or also larger states such as Washington. The following state-level population cartogram corrects that perspective by resizing each of the US states according to its total population and colouring the state by the colour of the winning candidate in the 2012 presidential election (assuming Florida also goes to Obama as currently predicted):

Cartogram / Map of the US Presidential Election 2012
(click for larger version)

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London’s Vote 2012

The old Mayor is the new Mayor of London as Boris Johnson secured a second term in office at this month’s election in the British capital. This left contender Ken Livingstone in second place at a campaign that was put the two personalities more into the spotlight than the underlying politics. Beyond the decision between Boris and Ken the elections provided an insight into how much the political patterns have changed since the last election in 2008. As a comparison to the feature published before the election, I created the same map series from the 2012 election results, giving an updated view of the political landscapes of London of all contestants and their respective political parties. This year’s election saw fewer candidates and resulted in a more polarised picture between the two main parties (Conservative and Labour) and the smaller ones. Nevertheless, the individual vote distributions of all participating parties (and candidates) result in specific patterns that correspond to the preferences of the population in London. Majorities of votes from each part of the political spectrum – from right to left wing views – are significantly distributed, not only when it comes to differences between Labour- and Conservative strongholds, but also for the smaller parties, as the following map series demonstrates by mapping the individual vote shares accordingly. The results are displayed on a gridded population cartogram of London (election data provided by London Elects):

The 2012 London Mayoral Election in Maps(click for larger view)

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Political Landscapes of London

Londoners will decide on their new mayor on the 3rd of May in this year’s mayoral election. Directly elected mayors were introduced in England in 2000 when Labour candidate Ken Livingstone was elected the first Mayor of London. He therefore also became the first to have this position in England under the Local Government Act 2000 introduced by the then Labour government under Prime Minister Tony Blair. Meanwhile, other cities have followed, and more will have a referendum on the issue on the same day Londoners go to the polls this year. Continue reading

In Focus: US midterm elections 2010

Political InsightA map showing the US midterm elections results is now featured in the “In Focus” section of Political Insight (April 2011, Volume 2, Issue 1). The accompanying article written by Charles Pattie, Danny Dorling and me looks at the implications of the election results.

Here are the bibliographic details:
US Midterm Elections 2010 Thumbnail image

  • Pattie, C. Hennig, B. D. and Dorling, D. (2011). In Focus: US Midterm Elections 2010. Political Insight2 (1): 34.
    Article online (Wiley)

More electoral maps can be found here.

The content on this page has been created by Benjamin D. Hennig. You are free use the material under Creative Commons conditions (CC BY-NC-ND 3.0); please contact me for further details. I also appreciate a message if you used my maps somewhere else. High resolution and customized maps are available on request.

US Election 2010: Mapping Senators and Governors

The previous post on this website already featured the map of the vote share in the US Congress related to the population distribution. But beyond the House of Representatives the voters in many US states had more to decide on: 37 Senate seats as well as 37 Governors were on the ballot paper. Here are the missing maps for these elections, shown in cartogram manner again. As the Senate grants each state the same number of Senators, a population-centric projection is less useful in this case. The following map thus transforms each state to have the same space on this map, so that the senate’s power distribution is better reflected in this depiction. The map only displays the results of last Tuesday’s election to the US Senate:

Map of the 2010 US midterm election results: Senate cartogram
(click for larger version)

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Mapping the US midterm elections

Two years after Obama has been elected president, another political change has come to the United States in this year’s midterm elections. Politically most significant will be the changed balance of power in the House of Representatives, which has now a majority for the Republican party (winning 240 of the seats, compared to 186 going to the Democrats, and 9 undeclared at the time of writing). Unlike the seats in the US Senate (with still a small majority for the Democrats), the share of seats in the Congress reflects roughly a quite equal population. The congressional districts, which are the decisive constituencies for the House of Representatives, are thus reflecting a general image of the political mood in the US (while the Senate is composed of two Senators for each State, regardless of the population).
Therefore it makes sense to create a different map of the election results for the House of Representatives in order to show a population-centric view of this year’s midterm. The following map uses a gridded population projection and maps the election results onto it, so that it shows the proportional population share of the results in its true dimension: Each person on the following map has the same space, so it reflects the number of people represented by each member of congress. To see where changes took place, different shadings of red/blue have been used in addition. The map uses the same colour key as the election maps on the Guardian website – their map allows you to identify any of the States and gives further details on the results for each electoral district.
This is how the results from the election to the House of Representatives in the 2010 Midterm elections of the United States look like on a population projection (a geographical view with a conventional map is included as an inset to allow comparison with the more commonly used maps):

Map of the 2010 US midterm election results for the House of Representatives
(click for larger version)

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